/* ============================================
 * Q&A 页面 CSS - Phase 2
 * 追加到 style.css 末尾 或 在 header.php 中引入
 * ============================================ */

/* === Q&A List Page === */
.qa-page { padding: 40px 0; }
.qa-page-header { margin-bottom: 28px; text-align: center; }
.qa-page-header h1 { font-size: 1.8rem; font-weight: 800; color: var(--slate); margin-bottom: 8px; }
.qa-page-desc { color: var(--gray-500); font-size: 0.95rem; }
.qa-page-desc strong { color: var(--orange); }

.qa-list-container { display: flex; flex-direction: column; gap: 16px; }
.qa-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); transition: all var(--transition); }
.qa-card:hover { box-shadow: var(--shadow-md); border-color: var(--orange-ghost); transform: translateY(-2px); }
.qa-card-link { display: block; padding: 24px; text-decoration: none; color: inherit; }
.qa-card-q { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.qa-card-q h3 { font-size: 1.05rem; font-weight: 600; color: var(--slate); flex: 1; }
.qa-card-a { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px; padding-left: 38px; }
.qa-card-a p { color: var(--gray-500); font-size: 0.9rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.qa-card-meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--gray-400); padding-left: 38px; }
.qa-cat { color: var(--orange); font-weight: 500; }
.qa-views, .qa-date { color: var(--gray-400); }

/* === QA Badge === */
.qa-badge { width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--orange), var(--orange-dark)); color: var(--white); border-radius: 8px; font-weight: 800; font-size: 0.85rem; flex-shrink: 0; }
.qa-badge.answer { background: linear-gradient(135deg, var(--teal), var(--teal-dark)); }
.qa-badge.large { width: 36px; height: 36px; font-size: 1.1rem; border-radius: 10px; }

/* === QA Detail Page === */
.qa-detail { max-width: 800px; margin: 0 auto; padding: 40px 0; }
.qa-detail-main { background: var(--white); border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); }
.qa-question-block { margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--gray-200); }
.qa-q-header { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 14px; }
.qa-q-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--slate); flex: 1; }
.qa-q-meta { display: flex; gap: 16px; font-size: 0.85rem; color: var(--gray-400); padding-left: 50px; }

.qa-answer-block { margin-bottom: 24px; }
.qa-a-header { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.qa-a-label { font-weight: 700; color: var(--teal); font-size: 1rem; }
.qa-answer-content { line-height: 1.9; color: var(--gray-700); font-size: 0.95rem; }
.qa-answer-content h2, .qa-answer-content h3 { color: var(--slate); margin: 20px 0 10px; }
.qa-answer-content p { margin-bottom: 14px; }
.qa-answer-content ul, .qa-answer-content ol { padding-left: 20px; margin-bottom: 14px; }
.qa-answer-content li { margin-bottom: 6px; }

/* === CTA === */
.qa-cta { background: var(--orange-light); border-radius: var(--radius); padding: 28px; text-align: center; margin-top: 40px; }
.qa-cta h3 { font-size: 1.15rem; color: var(--slate); margin-bottom: 6px; }
.qa-cta p { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 16px; }

.qa-cta-inline { display: flex; align-items: center; justify-content: space-between; background: var(--orange-light); border-radius: var(--radius); padding: 20px 24px; margin: 28px 0; gap: 20px; flex-wrap: wrap; }
.qa-cta-text { display: flex; flex-direction: column; gap: 4px; }
.qa-cta-text strong { font-size: 1.05rem; color: var(--slate); }
.qa-cta-text span { font-size: 0.88rem; color: var(--gray-500); }

.cta-btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: linear-gradient(135deg, var(--orange), var(--orange-dark)); color: var(--white); border-radius: 50px; font-weight: 700; font-size: 1rem; text-decoration: none; transition: all var(--transition); }
.cta-btn:hover { transform: scale(1.03); box-shadow: var(--shadow-lg); color: var(--white); }

.btn-primary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: linear-gradient(135deg, var(--orange), var(--orange-dark)); color: var(--white); border-radius: 50px; font-weight: 700; font-size: 1.1rem; text-decoration: none; transition: all var(--transition); }
.btn-primary:hover { transform: scale(1.03); box-shadow: var(--shadow-lg); color: var(--white); }

.btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: transparent; color: var(--orange); border: 2px solid var(--orange); border-radius: 50px; font-weight: 700; font-size: 1.1rem; text-decoration: none; transition: all var(--transition); }
.btn-outline:hover { background: var(--orange); color: var(--white); }

/* === Related Section === */
.related-section { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.related-section h3 { font-size: 1.1rem; font-weight: 700; color: var(--slate); margin-bottom: 14px; }
.related-qa-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.related-qa-list li a { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--gray-50); border-radius: var(--radius); text-decoration: none; color: var(--slate); font-size: 0.92rem; transition: all 0.2s; }
.related-qa-list li a:hover { background: var(--orange-light); color: var(--orange-dark); }
.related-q-mark { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; background: var(--orange); color: var(--white); border-radius: 6px; font-size: 0.75rem; font-weight: 700; flex-shrink: 0; }
.related-views { margin-left: auto; font-size: 0.78rem; color: var(--gray-400); }

/* === Empty State === */
.empty-state { text-align: center; padding: 60px 20px; color: var(--gray-400); }

/* === Breadcrumb (Q&A page) === */
.qa-page .breadcrumb, .qa-detail .breadcrumb { margin-bottom: 20px; }

/* === Mobile === */
@media (max-width: 768px) {
  .qa-page-header h1 { font-size: 1.4rem; }
  .qa-card-link { padding: 18px; }
  .qa-card-q h3 { font-size: 0.95rem; }
  .qa-detail-main { padding: 20px; }
  .qa-q-header h1 { font-size: 1.2rem; }
  .qa-cta-inline { flex-direction: column; text-align: center; }
  .qa-a-header { padding-left: 0; }
}